Consider the circuit shown in the figure. A short time after closing the switch, the charge on the capacitor is 70.0% of its initial charge. Assume the circuit has a time constant of 18.7 s. (a) Calculate the time interval required (in s) for the capacitor to reach this charge. 6.668 (b) If R = 300 kn, what is the value of C (in µF)?
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